diff options
Diffstat (limited to 'examples/widgets/mainwindows/sdi/mainwindow.cpp')
-rw-r--r-- | examples/widgets/mainwindows/sdi/mainwindow.cpp | 350 |
1 files changed, 225 insertions, 125 deletions
diff --git a/examples/widgets/mainwindows/sdi/mainwindow.cpp b/examples/widgets/mainwindows/sdi/mainwindow.cpp index 1d6226e45c..f59172f172 100644 --- a/examples/widgets/mainwindows/sdi/mainwindow.cpp +++ b/examples/widgets/mainwindows/sdi/mainwindow.cpp @@ -45,7 +45,7 @@ MainWindow::MainWindow() { init(); - setCurrentFile(""); + setCurrentFile(QString()); } MainWindow::MainWindow(const QString &fileName) @@ -67,44 +67,44 @@ void MainWindow::closeEvent(QCloseEvent *event) void MainWindow::newFile() { MainWindow *other = new MainWindow; - other->move(x() + 40, y() + 40); + other->tile(this); other->show(); } void MainWindow::open() { - QString fileName = QFileDialog::getOpenFileName(this); - if (!fileName.isEmpty()) { - MainWindow *existing = findMainWindow(fileName); - if (existing) { - existing->show(); - existing->raise(); - existing->activateWindow(); - return; - } - - if (isUntitled && textEdit->document()->isEmpty() - && !isWindowModified()) { - loadFile(fileName); - } else { - MainWindow *other = new MainWindow(fileName); - if (other->isUntitled) { - delete other; - return; - } - other->move(x() + 40, y() + 40); - other->show(); - } + const QString fileName = QFileDialog::getOpenFileName(this); + if (!fileName.isEmpty()) + openFile(fileName); +} + +void MainWindow::openFile(const QString &fileName) +{ + MainWindow *existing = findMainWindow(fileName); + if (existing) { + existing->show(); + existing->raise(); + existing->activateWindow(); + return; + } + + if (isUntitled && textEdit->document()->isEmpty() && !isWindowModified()) { + loadFile(fileName); + return; } + + MainWindow *other = new MainWindow(fileName); + if (other->isUntitled) { + delete other; + return; + } + other->tile(this); + other->show(); } bool MainWindow::save() { - if (isUntitled) { - return saveAs(); - } else { - return saveFile(curFile); - } + return isUntitled ? saveAs() : saveFile(curFile); } bool MainWindow::saveAs() @@ -139,123 +139,135 @@ void MainWindow::init() setCentralWidget(textEdit); createActions(); - createMenus(); - createToolBars(); createStatusBar(); readSettings(); - connect(textEdit->document(), SIGNAL(contentsChanged()), - this, SLOT(documentWasModified())); + connect(textEdit->document(), &QTextDocument::contentsChanged, + this, &MainWindow::documentWasModified); setUnifiedTitleAndToolBarOnMac(true); } +void MainWindow::tile(const QMainWindow *previous) +{ + if (!previous) + return; + int topFrameWidth = previous->geometry().top() - previous->pos().y(); + if (!topFrameWidth) + topFrameWidth = 40; + const QPoint pos = previous->pos() + 2 * QPoint(topFrameWidth, topFrameWidth); + if (QApplication::desktop()->availableGeometry(this).contains(rect().bottomRight() + pos)) + move(pos); +} + +//! [implicit tr context] void MainWindow::createActions() { - newAct = new QAction(QIcon(":/images/new.png"), tr("&New"), this); + QMenu *fileMenu = menuBar()->addMenu(tr("&File")); +//! [implicit tr context] + QToolBar *fileToolBar = addToolBar(tr("File")); + + const QIcon newIcon = QIcon::fromTheme("document-new", QIcon(":/images/new.png")); + QAction *newAct = new QAction(newIcon, tr("&New"), this); newAct->setShortcuts(QKeySequence::New); newAct->setStatusTip(tr("Create a new file")); - connect(newAct, SIGNAL(triggered()), this, SLOT(newFile())); + connect(newAct, &QAction::triggered, this, &MainWindow::newFile); + fileMenu->addAction(newAct); + fileToolBar->addAction(newAct); - openAct = new QAction(QIcon(":/images/open.png"), tr("&Open..."), this); + const QIcon openIcon = QIcon::fromTheme("document-open", QIcon(":/images/open.png")); + QAction *openAct = new QAction(openIcon, tr("&Open..."), this); openAct->setShortcuts(QKeySequence::Open); openAct->setStatusTip(tr("Open an existing file")); - connect(openAct, SIGNAL(triggered()), this, SLOT(open())); + connect(openAct, &QAction::triggered, this, &MainWindow::open); + fileMenu->addAction(openAct); + fileToolBar->addAction(openAct); - saveAct = new QAction(QIcon(":/images/save.png"), tr("&Save"), this); + const QIcon saveIcon = QIcon::fromTheme("document-save", QIcon(":/images/save.png")); + QAction *saveAct = new QAction(saveIcon, tr("&Save"), this); saveAct->setShortcuts(QKeySequence::Save); saveAct->setStatusTip(tr("Save the document to disk")); - connect(saveAct, SIGNAL(triggered()), this, SLOT(save())); + connect(saveAct, &QAction::triggered, this, &MainWindow::save); + fileMenu->addAction(saveAct); + fileToolBar->addAction(saveAct); - saveAsAct = new QAction(tr("Save &As..."), this); + const QIcon saveAsIcon = QIcon::fromTheme("document-save-as"); + QAction *saveAsAct = fileMenu->addAction(saveAsIcon, tr("Save &As..."), this, &MainWindow::saveAs); saveAsAct->setShortcuts(QKeySequence::SaveAs); saveAsAct->setStatusTip(tr("Save the document under a new name")); - connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs())); - closeAct = new QAction(tr("&Close"), this); + fileMenu->addSeparator(); + + QMenu *recentMenu = fileMenu->addMenu(tr("Recent...")); + connect(recentMenu, &QMenu::aboutToShow, this, &MainWindow::updateRecentFileActions); + recentFileSubMenuAct = recentMenu->menuAction(); + + for (int i = 0; i < MaxRecentFiles; ++i) { + recentFileActs[i] = recentMenu->addAction(QString(), this, &MainWindow::openRecentFile); + recentFileActs[i]->setVisible(false); + } + + recentFileSeparator = fileMenu->addSeparator(); + + setRecentFilesVisible(MainWindow::hasRecentFiles()); + + QAction *closeAct = fileMenu->addAction(tr("&Close"), this, &QWidget::close); closeAct->setShortcut(tr("Ctrl+W")); closeAct->setStatusTip(tr("Close this window")); - connect(closeAct, SIGNAL(triggered()), this, SLOT(close())); - exitAct = new QAction(tr("E&xit"), this); + const QIcon exitIcon = QIcon::fromTheme("application-exit"); + QAction *exitAct = fileMenu->addAction(exitIcon, tr("E&xit"), qApp, &QApplication::closeAllWindows); exitAct->setShortcuts(QKeySequence::Quit); exitAct->setStatusTip(tr("Exit the application")); - connect(exitAct, SIGNAL(triggered()), qApp, SLOT(closeAllWindows())); - cutAct = new QAction(QIcon(":/images/cut.png"), tr("Cu&t"), this); + QMenu *editMenu = menuBar()->addMenu(tr("&Edit")); + QToolBar *editToolBar = addToolBar(tr("Edit")); + +#ifndef QT_NO_CLIPBOARD + const QIcon cutIcon = QIcon::fromTheme("edit-cut", QIcon(":/images/cut.png")); + QAction *cutAct = new QAction(cutIcon, tr("Cu&t"), this); cutAct->setShortcuts(QKeySequence::Cut); cutAct->setStatusTip(tr("Cut the current selection's contents to the " "clipboard")); - connect(cutAct, SIGNAL(triggered()), textEdit, SLOT(cut())); + connect(cutAct, &QAction::triggered, textEdit, &QTextEdit::cut); + editMenu->addAction(cutAct); + editToolBar->addAction(cutAct); - copyAct = new QAction(QIcon(":/images/copy.png"), tr("&Copy"), this); + const QIcon copyIcon = QIcon::fromTheme("edit-copy", QIcon(":/images/copy.png")); + QAction *copyAct = new QAction(copyIcon, tr("&Copy"), this); copyAct->setShortcuts(QKeySequence::Copy); copyAct->setStatusTip(tr("Copy the current selection's contents to the " "clipboard")); - connect(copyAct, SIGNAL(triggered()), textEdit, SLOT(copy())); + connect(copyAct, &QAction::triggered, textEdit, &QTextEdit::copy); + editMenu->addAction(copyAct); + editToolBar->addAction(copyAct); - pasteAct = new QAction(QIcon(":/images/paste.png"), tr("&Paste"), this); + const QIcon pasteIcon = QIcon::fromTheme("edit-paste", QIcon(":/images/paste.png")); + QAction *pasteAct = new QAction(pasteIcon, tr("&Paste"), this); pasteAct->setShortcuts(QKeySequence::Paste); pasteAct->setStatusTip(tr("Paste the clipboard's contents into the current " "selection")); - connect(pasteAct, SIGNAL(triggered()), textEdit, SLOT(paste())); + connect(pasteAct, &QAction::triggered, textEdit, &QTextEdit::paste); + editMenu->addAction(pasteAct); + editToolBar->addAction(pasteAct); + + menuBar()->addSeparator(); +#endif // !QT_NO_CLIPBOARD - aboutAct = new QAction(tr("&About"), this); + QMenu *helpMenu = menuBar()->addMenu(tr("&Help")); + QAction *aboutAct = helpMenu->addAction(tr("&About"), this, &MainWindow::about); aboutAct->setStatusTip(tr("Show the application's About box")); - connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); - aboutQtAct = new QAction(tr("About &Qt"), this); + QAction *aboutQtAct = helpMenu->addAction(tr("About &Qt"), qApp, &QApplication::aboutQt); aboutQtAct->setStatusTip(tr("Show the Qt library's About box")); - connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); - +#ifndef QT_NO_CLIPBOARD cutAct->setEnabled(false); copyAct->setEnabled(false); - connect(textEdit, SIGNAL(copyAvailable(bool)), - cutAct, SLOT(setEnabled(bool))); - connect(textEdit, SIGNAL(copyAvailable(bool)), - copyAct, SLOT(setEnabled(bool))); -} - -//! [implicit tr context] -void MainWindow::createMenus() -{ - fileMenu = menuBar()->addMenu(tr("&File")); -//! [implicit tr context] - fileMenu->addAction(newAct); - fileMenu->addAction(openAct); - fileMenu->addAction(saveAct); - fileMenu->addAction(saveAsAct); - fileMenu->addSeparator(); - fileMenu->addAction(closeAct); - fileMenu->addAction(exitAct); - - editMenu = menuBar()->addMenu(tr("&Edit")); - editMenu->addAction(cutAct); - editMenu->addAction(copyAct); - editMenu->addAction(pasteAct); - - menuBar()->addSeparator(); - - helpMenu = menuBar()->addMenu(tr("&Help")); - helpMenu->addAction(aboutAct); - helpMenu->addAction(aboutQtAct); -} - -void MainWindow::createToolBars() -{ -//! [0] - fileToolBar = addToolBar(tr("File")); - fileToolBar->addAction(newAct); - fileToolBar->addAction(openAct); -//! [0] - fileToolBar->addAction(saveAct); - - editToolBar = addToolBar(tr("Edit")); - editToolBar->addAction(cutAct); - editToolBar->addAction(copyAct); - editToolBar->addAction(pasteAct); + connect(textEdit, &QTextEdit::copyAvailable, cutAct, &QAction::setEnabled); + connect(textEdit, &QTextEdit::copyAvailable, copyAct, &QAction::setEnabled); +#endif // !QT_NO_CLIPBOARD } void MainWindow::createStatusBar() @@ -265,33 +277,41 @@ void MainWindow::createStatusBar() void MainWindow::readSettings() { - QSettings settings; - QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint(); - QSize size = settings.value("size", QSize(400, 400)).toSize(); - move(pos); - resize(size); + QSettings settings(QCoreApplication::organizationName(), QCoreApplication::applicationName()); + const QByteArray geometry = settings.value("geometry", QByteArray()).toByteArray(); + if (geometry.isEmpty()) { + const QRect availableGeometry = QApplication::desktop()->availableGeometry(this); + resize(availableGeometry.width() / 3, availableGeometry.height() / 2); + move((availableGeometry.width() - width()) / 2, + (availableGeometry.height() - height()) / 2); + } else { + restoreGeometry(geometry); + } } void MainWindow::writeSettings() { - QSettings settings; - settings.setValue("pos", pos()); - settings.setValue("size", size()); + QSettings settings(QCoreApplication::organizationName(), QCoreApplication::applicationName()); + settings.setValue("geometry", saveGeometry()); } bool MainWindow::maybeSave() { - if (textEdit->document()->isModified()) { - QMessageBox::StandardButton ret; - ret = QMessageBox::warning(this, tr("SDI"), - tr("The document has been modified.\n" - "Do you want to save your changes?"), - QMessageBox::Save | QMessageBox::Discard - | QMessageBox::Cancel); - if (ret == QMessageBox::Save) - return save(); - else if (ret == QMessageBox::Cancel) - return false; + if (!textEdit->document()->isModified()) + return true; + const QMessageBox::StandardButton ret + = QMessageBox::warning(this, tr("SDI"), + tr("The document has been modified.\n" + "Do you want to save your changes?"), + QMessageBox::Save | QMessageBox::Discard + | QMessageBox::Cancel); + switch (ret) { + case QMessageBox::Save: + return save(); + case QMessageBox::Cancel: + return false; + default: + break; } return true; } @@ -303,8 +323,7 @@ void MainWindow::loadFile(const QString &fileName) if (!file.open(QFile::ReadOnly | QFile::Text)) { QMessageBox::warning(this, tr("SDI"), tr("Cannot read file %1:\n%2.") - .arg(fileName) - .arg(file.errorString())); + .arg(QDir::toNativeSeparators(fileName), file.errorString())); return; } @@ -317,14 +336,90 @@ void MainWindow::loadFile(const QString &fileName) statusBar()->showMessage(tr("File loaded"), 2000); } +void MainWindow::setRecentFilesVisible(bool visible) +{ + recentFileSubMenuAct->setVisible(visible); + recentFileSeparator->setVisible(visible); +} + +static inline QString recentFilesKey() { return QStringLiteral("recentFileList"); } +static inline QString fileKey() { return QStringLiteral("file"); } + +static QStringList readRecentFiles(QSettings &settings) +{ + QStringList result; + const int count = settings.beginReadArray(recentFilesKey()); + for (int i = 0; i < count; ++i) { + settings.setArrayIndex(i); + result.append(settings.value(fileKey()).toString()); + } + settings.endArray(); + return result; +} + +static void writeRecentFiles(const QStringList &files, QSettings &settings) +{ + const int count = files.size(); + settings.beginWriteArray(recentFilesKey()); + for (int i = 0; i < count; ++i) { + settings.setArrayIndex(i); + settings.setValue(fileKey(), files.at(i)); + } + settings.endArray(); +} + +bool MainWindow::hasRecentFiles() +{ + QSettings settings(QCoreApplication::organizationName(), QCoreApplication::applicationName()); + const int count = settings.beginReadArray(recentFilesKey()); + settings.endArray(); + return count > 0; +} + +void MainWindow::prependToRecentFiles(const QString &fileName) +{ + QSettings settings(QCoreApplication::organizationName(), QCoreApplication::applicationName()); + + const QStringList oldRecentFiles = readRecentFiles(settings); + QStringList recentFiles = oldRecentFiles; + recentFiles.removeAll(fileName); + recentFiles.prepend(fileName); + if (oldRecentFiles != recentFiles) + writeRecentFiles(recentFiles, settings); + + setRecentFilesVisible(!recentFiles.isEmpty()); +} + +void MainWindow::updateRecentFileActions() +{ + QSettings settings(QCoreApplication::organizationName(), QCoreApplication::applicationName()); + + const QStringList recentFiles = readRecentFiles(settings); + const int count = qMin(int(MaxRecentFiles), recentFiles.size()); + int i = 0; + for ( ; i < count; ++i) { + const QString fileName = MainWindow::strippedName(recentFiles.at(i)); + recentFileActs[i]->setText(tr("&%1 %2").arg(i + 1).arg(fileName)); + recentFileActs[i]->setData(recentFiles.at(i)); + recentFileActs[i]->setVisible(true); + } + for ( ; i < MaxRecentFiles; ++i) + recentFileActs[i]->setVisible(false); +} + +void MainWindow::openRecentFile() +{ + if (const QAction *action = qobject_cast<const QAction *>(sender())) + openFile(action->data().toString()); +} + bool MainWindow::saveFile(const QString &fileName) { QFile file(fileName); if (!file.open(QFile::WriteOnly | QFile::Text)) { QMessageBox::warning(this, tr("SDI"), tr("Cannot write file %1:\n%2.") - .arg(fileName) - .arg(file.errorString())); + .arg(QDir::toNativeSeparators(fileName), file.errorString())); return false; } @@ -351,6 +446,10 @@ void MainWindow::setCurrentFile(const QString &fileName) textEdit->document()->setModified(false); setWindowModified(false); + + if (!isUntitled && windowFilePath() != curFile) + MainWindow::prependToRecentFiles(curFile); + setWindowFilePath(curFile); } @@ -359,14 +458,15 @@ QString MainWindow::strippedName(const QString &fullFileName) return QFileInfo(fullFileName).fileName(); } -MainWindow *MainWindow::findMainWindow(const QString &fileName) +MainWindow *MainWindow::findMainWindow(const QString &fileName) const { QString canonicalFilePath = QFileInfo(fileName).canonicalFilePath(); - foreach (QWidget *widget, qApp->topLevelWidgets()) { + foreach (QWidget *widget, QApplication::topLevelWidgets()) { MainWindow *mainWin = qobject_cast<MainWindow *>(widget); if (mainWin && mainWin->curFile == canonicalFilePath) return mainWin; } + return 0; } |